The CHRONOMASTER Open offers a view of the beating heart of the El Primero movement from the dial. Crafted in a sleek 39.5mm steel case, this version features a matte black dial with tricolour counters and a transparent counter for the running seconds, paired with an integrated steel bracelet. Powered by the El Primero 3604 1/10th of a second automatic chronograph movement.
- Collection
Chronomaster
- Feature
Hours/Minutes, Chronograph, Open-heart
- Movement
Automatic Self-Winding
- Diameter
39.5 mm
- Watch Markers
Analogue, Batons, Luminescent
- Case Material
Stainless Steel
- Dial Colour
Black
- Strap Material
Stainless Steel
- Water Resistance
100 Meters